1255643468 has 12 divisors (see below), whose sum is σ = 2268259392. Its totient is φ = 607569360.

The previous prime is 1255643461. The next prime is 1255643489. The reversal of 1255643468 is 8643465521.

It is not an unprimeable number, because it can be changed into a prime (1255643461) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5062955 + ... + 5063202.

It is an arithmetic number, because the mean of its divisors is an integer number (189021616).

Almost surely, 2^1255643468 is an apocalyptic number.

It is an amenable number.

1255643468 is a deficient number, since it is larger than the sum of its proper divisors (1012615924).

1255643468 is a wasteful number, since it uses less digits than its factorization.

1255643468 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10126192 (or 10126190 counting only the distinct ones).

The product of its digits is 691200, while the sum is 44.

The square root of 1255643468 is about 35435.0598701343. The cubic root of 1255643468 is about 1078.8360425339.

The spelling of 1255643468 in words is "one billion, two hundred fifty-five million, six hundred forty-three thousand, four hundred sixty-eight".